Mathematics High School

The sides of a triangle in cm, are , x , 2x – 5 and 2x – 3 . The perimeter of the triangle is 32 cm . i) Write down an equation for x

Answers

Answer 1

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Answer:

  32 = (x) +(2x -5) +(2x -3)

Step-by-step explanation:

The perimeter is the sum of the side lengths:

  P = a + b + c

  32 = (x) +(2x -5) +(2x -3)

__

This can be simplified to ...

  32 = 5x -8

and solved to find x:

  x = (32 +8)/5 = 8

Related Questions

y= 3x +5
Who looks better

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None of them sorry because 1-2=1

PLEASE HELP I WILL MARK BRAINLY

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Answer:

The answer is C

Step-by-step explanation:

We apply the given formula: y= 2x + 1.

0 x 2 = 0 + 1 = 1, so A is incorrect.

1 x 2 = 2 + 1 = 3, C is the only one with 3 as the second number, so C is correct

graph the circle (x+2)^2+(y-6)^2=9

Answers

Answer:

8

Step-by-step explanation:

Step-by-step explanation:

I did this on desmos I hope it helps

Answer these two and get marked as barinliest!!!

Answers

First one is $16 and the second is $276.25

Answer:

Step-by-step explanation:

first one A and second one C

what is the area of this circle pls help

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Answer:

answer is 113.04 [tex]cm^{2}[/tex]

Step-by-step explanation:

the bottom one on the right

Its substitution, and rearrangement you have to find x
y = 3x + 7 5x - 2y = -10​

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Answer:

Step-by-step explanation: I dont know actually

PLEASE HELP I NEED IT LIKE ASAP!!!

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Answer: oop i forgot

Step-by-step explanation srry

first hole needs 6 square feet, second hole needs 2 square feet.

Hello! I will give you fifteen points if you solve this correctly!

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Answer:

mark each line about 1 in. apart

Plzzzzz give me Brainliest!!!!!  

36 ft
27 ft
What is the length of the hypotenuse?
C
feet

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36^2 + 27^2 = C^2
1296 + 729 = C^2
2025 = C^2
C = 45
45 feet is the length of the hypotenuse
Have a great day!!

I need help with this problem ASAP
[tex]6 {x}^{2} {y}^{2} + 3xy - 2x + 7y + - 4xy + {x}^{2} {y}^{2} [/tex]
​

Answers

Answers: 7x^2y^2 -3x+6y

I am not sure how to explain it but here you go

Answer and will mark brainliest

Answers

Answer:

30

Step-by-step explanation:

i need help with this​

Answers

Answer:

We conclude that:

[tex]\frac{x+2}{x+4}-\frac{x-1}{x+6}=\frac{5x+16}{\left(x+4\right)\left(x+6\right)}[/tex]

Step-by-step explanation:

Given the expression

[tex]\frac{x+2}{x+4}-\frac{x-1}{x+6}[/tex]

Least Common Multiple of x+4, x+6:  (x+4) (x+6)

Adjusting fractions based on the LCM

[tex]=\frac{\left(x+2\right)\left(x+6\right)}{\left(x+4\right)\left(x+6\right)}-\frac{\left(x-1\right)\left(x+4\right)}{\left(x+6\right)\left(x+4\right)}[/tex]

since the denominators are equal, combine the fractions:

[tex]\frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}[/tex]

so the expression becomes

[tex]=\frac{\left(x+2\right)\left(x+6\right)-\left(x-1\right)\left(x+4\right)}{\left(x+4\right)\left(x+6\right)}[/tex]

[tex]=\frac{x^2+8x+12-\left(x-1\right)\left(x+4\right)}{\left(x+4\right)\left(x+6\right)}[/tex]

[tex]=\frac{x^2+8x+12-x^2-3x+4}{\left(x+4\right)\left(x+6\right)}[/tex]

simplify

[tex]=\frac{5x+16}{\left(x+4\right)\left(x+6\right)}[/tex]

Therefore, we conclude that:

[tex]\frac{x+2}{x+4}-\frac{x-1}{x+6}=\frac{5x+16}{\left(x+4\right)\left(x+6\right)}[/tex]

what is the volume of a right circular cylinder with a base diameter of 6m and a height of 5 m

Answers

Step-by-step explanation:

35

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PLEASE HELP

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answer: 5b

the exponents basically cancel themselves out. :)

An aeroplane takes off and flies steadily for a distance of 5.6 km at an altitude of 2 km from it's runway . Calculate the angle that it makes with the horizontal

Answers

Answer:

The angle the aero plane makes with the horizontal is approximately 20.925°

Step-by-step explanation:

The given parameters are;

The distance the aero plane flies = 5.6 km

The elevation to which the aero plane flies = 2 km

The angle the path of the aero plane as it takes off makes with the horizontal, θ, is the angle opposite the altitude of the right triangle formed by the aero plane's path (the hypotenuse), the horizontal, and the line drawn from the final position of the aero plane, representing the altitude (the opposite leg to angle θ)

By the trigonometric ratio for the sin of the angle, θ, we have;

[tex]sin(\theta) = \dfrac{Opposite \ leg \ length}{Hypotenuse \ length} = \dfrac{2 \ km}{5.6 \ km} = \dfrac{2}{5.6}[/tex]

Therefore, the angle θ the aero plane makes with the horizontal is given as follows;

[tex]\theta = arcsin \left (\dfrac{2}{5.6} \right ) \approx 20.925 ^{\circ}[/tex]

The angle the aero plane makes with the horizontal ≈ 20.925°.

Susie is visiting the U.S. from Mexico. One day she stopped by a market and found a stall selling tomatoes for 0.97 dollars per pound. If 1 peso was worth 0.053 dollars that day, how much did the tomatoes cost in pesos per kilogram?

Answers

Answer:

eish

Step-by-step explanation:

shhsjsbsbebsjushehbsjejdudushebeisius I'm sorry

Consider the polynomial 9n2+60n+100.
What are the square roots of the first and last terms?

square root of first term:

square root of last term:

Answers

First term: 3n
Last term: 10
Have a great day :)

4+5(2-3x)+4x
Help pls I need it FAST

Answers

The answer to the question is: 14-11x

Answer: 14 -11x

You first distribute 5 through the parenthesi to get 4 + 10 - 15x + 4x. Then calculate like terms to get 14 - 11x

I need 5x - 6y = 30 super bad including The Slope and the Y-Intercept, please I need this super fastttt!

Answers

Answer:

the slope will be 5/6 and the y- intercept is going to be (0,-5)

Step-by-step explanation:

use the slope-intercept form y=mx+b to find the slope (M) and the y-intercept (b)

I need this answered!
Simplify the following expression:
5s + 72 - 6
use s = -8 and z = -3
I Record your answer in this box:

Answers

Answer:

I believe its -82

Step-by-step explanation:

5 × -8 + 7 × -3 = -82

1. The point (4, - 2) is the vertex of the graph of a quadratic function. The points (8,6)
and (2,0) also fall on the graph of the function. Complete the graph of this
quadratic function by first finding two additional points on the graph.
2
0
10
10
9
-8
-4
-6
-2
4
6
8
10
-2
-4
-6
-107
Part A:
What is the y-intercept of the graph?
Part B:
What are the x-intercepts?
Part C:
Find the interval on which the rate of change is always positive.
Part D:
What is the sign of the leading coefficient for this quadratic function? How
do you know?
El

Answers

Answer:

It doesn't make sense and their no picture that provides us with clear evidence on how to answer this better then how your explaing

Step-by-step explanation:

I don't know how to  know how to answer this lol, because I need a better explination

what is 46274648354846374 times 77466​

Answers

3.5847146e+20

:)))))))))))))

Lucy correctly answered 70% of the questions on her science homework. She counted 14 correct answers. How many questions are there on her homework?

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Answer:

9.8

Step-by-step explanation:

..please help someone, im begging you. theres two screenshots i took bc its either a, b, c, or d

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Answer:

It's C

Step-by-step explanation:

c!! have a good day and stay safe

A picture frame can hold a photograph that is 16 inches long and 12 inches wide
What is the area of the photo that fits the frame?

Answers

I think you do 16*12=196

Answer:

16 X 12 = 192 squared inches

Find the slope.....................

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Answer:

-1 :)

Step-by-step explanation:

I need help please. Thank you

Answers

Answer:

try 4 inches

Step-by-step explanation:

since the diameter is 8 inches, then we can do 82 to find the radius, or 4 inches.

WILL MARK BRAINLIEST TO THE PERSON WITH THE BEST ANSWER!!! PLEASE ANSWER ALL QUESTIONS AND PLEASE SHOW FULL SOLUTIONS! PLEASE MAKE SURE YOU DID IT RIGHT. I NEED EVIDENCE THAT SHOWS WHY ITS THE ANSWER. THANK YOU.

Answers

Hey there!

Here is a graph of the points:

A scatterplot is a graph, but the points won't be able to connect in a straight line, and they have no relation.

A line of best fit is a line that goes evenly through the points, or as best as it could.

If y = 4x + 3 is changed to y = 7x-1, how would the graph of the new function compare with the first
one? Describe its steepness and how it might shift.

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The line is going to be steeper because the slope is bigger. The line shifts 4 units down.

Hi , I have geometric question
What is x angel ?

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Explain how I would know the answer
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